Magnepan 1.7s in a 10x13' dedicated room?

@Linesource & Johnny- You might want to review this paper, regarding Decibels, apparent loudness levels and power requirements: (http://www.gcaudio.com/resources/howtos/voltageloudness.html)

Rodman9999, what's your point?

To double the apparent loudness of a system by 2 times(10db) takes 10 times the power. 3db is about a 1.23 times increase in loudness and the increases are not linear, but- logarithmic. (http://www.cs.sfu.ca/~tamaras/digitalAudio/Linear_vs_logarithmic.html) (http://www.cs.sfu.ca/~tamaras/digitalAudio/Decibels.html) 115db, from Maggies with 35WPC? That'll be the day!

I posted "From there, you double the power required to raise loudness in increments of 3dB."

I was adhering to the "double the power for a 3dB increment" principle all along. Start with factory spec 86dB at 1W input in an anechoic room; factor in a second speaker (+3dB=89 dB at 1 wattt) and room gain (another 3-6 dB) and you could get 95dB at 1 watt input per speaker as the stereo in-room starting point. From there, 1x2x2x2x2x2=32 watts as the result of five doublings, making for a 5x3=15dB increase. So in a small room you can hit 105 (my intended figure) to 110 dB (depending on room gain) with around 35 watts x 2, making 70 watts.

You still are trying to figure your power requirements on a linear scale. Did you even read the treatise I first mentioned? The first two paragraphs following the chart couldn't state it more clearly. Hopefully, Linesource will understand, and not expect the miracles you've promised.